The Role of Corrosion Resistance in the Technical Feasibility of CO2 Injection Wells from BECCS

[Geoengineering News]

https://content.ampp.org/ampp/proceedings-abstract/CONF_MAR26/2026/1/107718

Authors: Juliana Carvalho; Fabiano Galbiati; Tatiana C. Almeida; Rogaciano M. Moreira; Merlin C. E. Bandeira

https://doi.org/10.5006/C2026-00239

Published Online: March 15 2026

Abstract

The growing demand for effective greenhouse gas mitigation strategies has driven the development of carbon capture and storage (CCS) technologies, among which BECCS (Bioenergy with Carbon Capture and Storage) stands out for its potential to deliver large-scale negative emissions. In this context, corrosion resistance is a critical requirement for the technical feasibility of CO2 injection wells, as the presence of water and impurities such as H2S, O2, and ethanol can intensify corrosive mechanisms and compromise structural integrity and operational safety. Corrosion-induced failures may lead not only to significant operational costs but also to severe risks of containment loss and environmental impact. In this scenario, the rigorous selection of corrosion-resistant materials, coupled with the application of protective barrier systems and the deployment of advanced monitoring strategies, is essential to ensure the long-term integrity and operational safety of CO2 injection wells throughout their service life.

This work presents laboratory tests with carbon steel L80, martensitic stainless steel 13CrS, and superduplex stainless steel 25Cr under representative BECCS CO2 injection conditions. The results contribute to evaluating the performance of these materials in aggressive environments and provide technical guidance for alloy selection in CO2 injection well projects, ensuring safer and more durable long-term operation.

Source: AMPP